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Osaka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical transmitter/receiver apparatus, method for fabricating the...
Patent number
6,517,257
Issue date
Feb 11, 2003
Matsushita Electric Industrial Co., Ltd.
Tohru Nishikawa
G02 - OPTICS
Information
Patent Grant
Optical device and method for producing the same
Patent number
6,406,196
Issue date
Jun 18, 2002
Matsushita Electric Industrial Co., Ltd.
Tomoaki Uno
G02 - OPTICS
Information
Patent Grant
Optical transmitter/receiver apparatus, method for fabricating the...
Patent number
6,332,719
Issue date
Dec 25, 2001
Matsushita Electric Industrial Co., Ltd.
Tohru Nishikawa
G02 - OPTICS
Information
Patent Grant
Short-wavelength laser element doped with rare earth ions, optical...
Patent number
5,659,558
Issue date
Aug 19, 1997
Matsushita Electric Industrial Co., Ltd.
Genji Tohmon
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Laser element doped with rare earth ions, optical amplifier element...
Patent number
5,426,656
Issue date
Jun 20, 1995
Matsushita Electric Industrial Co., Ltd.
Genji Tohmon
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Rare earth ion doped optical element
Patent number
5,341,237
Issue date
Aug 23, 1994
Matsushita Electric Industrial Co., Ltd.
Genji Tohmon
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical fiber amplifier doped with dysprosium ion for the 1.3 .mu.m...
Patent number
5,321,708
Issue date
Jun 14, 1994
Matsushita Electric Industrial Co., Ltd.
Genji Tohmon
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Optical transmitter/receiver apparatus, method for fabricating the...
Publication number
20020048436
Publication date
Apr 25, 2002
Matsushita Electric Industrial Co., Ltd.
Tohru Nishikawa
G02 - OPTICS